HAMBURGER RESEARCH SERIES | RESEARCH PAPER
Lean Beef Imports for Hamburger Sold in America
Why American ground beef depends on imported lean trim, how the 2026 quota changes widened that flow, and what it means for the label.
Prepared for publication by Farm Animal Transparency | First published December 2025; revised October 2026
Imported lean trim is a structural input to American hamburger, not an exception — and in 2026 federal policy deliberately enlarged it, while no rule requires the package to say so.
| At a glance |
|---|
| The blend: a common 85% lean grind takes about seven pounds of 90% lean trim for every pound of 50% lean trim from fed cattle (Peel, Oklahoma State University). |
| The gap: U.S. cow slaughter fell 28.7% from 2022 through 2025, and production of non-fed beef — the main source of domestic lean trim — fell 24.8%. |
| The imports: imported trim supplied an estimated 38.7% of all U.S. ground-beef trim in 2025, against a 20-year average of about 25%. |
| The 2026 policy: Proclamation 11010 (February 2026) added 80,000 metric tons of Argentine lean trim to the low-duty quota for 2026; Proclamation 11059 (August 2026) added 300,000 metric tons for any eligible country, from September through November. |
| The label: a blend containing imported trim cannot say “Product of USA,” but nothing requires it to say anything else. |
Abstract
This short paper explains why U.S. ground beef relies on imported lean trim, how that reliance grew as the domestic herd shrank, how the U.S. beef tariff-rate quota works and how it was enlarged in 2026, and what all of this means for what a shopper can learn from a package. It replaces FAT’s unsourced December 2025 version. The full supply-chain briefing is Lean Beef in America.
1. The blending arithmetic
Ground beef is sold by lean percentage — 73/27, 80/20, 85/15, 90/10 and leaner. Federal rules cap ground beef and hamburger at 30% fat (9 CFR 319.15). Grain-finished steers and heifers yield large amounts of trimmings that test about 50% lean; Peel puts the trim from one fed carcass at 150 to 250 pounds. To turn that fatty trim into an 85% lean product, a grinder needs roughly seven pounds of 90% lean trim for every pound of 50% trim — in Peel’s words, the lean trim of three to four cull cows for each fed carcass.
| Lean trim (90%) | Fatty trim (50%) | Result |
|---|---|---|
| 3 lb | 1 lb | 4 lb at 80% lean (80/20) |
| 7 lb | 1 lb | 8 lb at 85% lean (85/15) |
2. Why domestic lean is short
Lean trim comes mainly from cull cows — older beef and dairy cows leaving the herd. The U.S. cattle inventory on January 1, 2026 was 86.2 million head, the smallest in 75 years (USDA NASS). With fewer cows, fewer are culled: Peel calculates that cow slaughter fell 28.7% from 2022 through 2025 and non-fed beef production fell 24.8%. Imports filled the gap. Peel estimates imported trim at 38.7% of total ground-beef trim in 2025, the highest share in more than 20 years. He also notes the other side of the trade: imported lean supports the value of the fatty trim that U.S. fed cattle produce.
Producer groups such as R-CALF USA read the same mechanism differently: easy access to imported lean, they argue, reduces packers’ need to bid up domestic cull cows. Both readings describe the same arithmetic; which matters more depends on where one sits in the chain.
3. How imports are admitted
Most U.S. beef imports fall under a tariff-rate quota (TRQ): a low in-quota duty of 4.4 cents per kilogram up to set quantities, and 26.4% beyond them. Australia, New Zealand, Uruguay and Argentina hold country-specific allocations; Brazil and others share an “other countries” quota. Two 2026 proclamations, both issued under Section 404 of the Uruguay Round Agreements Act, enlarged the in-quota amount for lean trimmings:
- Proclamation 11010 (signed February 6, 2026) added 80,000 metric tons for Argentina for calendar 2026.
- Proclamation 11059 (signed August 26, 2026; published August 31) added 300,000 metric tons of lean beef trimmings, allocated to “other countries or areas,” first come, first served, in three 100,000-ton tranches opening September 1, October 1 and October 31 and closing no later than November 30, 2026. It directs USDA and the Trade Representative to monitor whether the imported trim sells at least 25% below the market price, and allows the President to end the increase if it does not.
Every country must first be found “equivalent” by FSIS before its plants may ship, and every shipment is reinspected at entry: FSIS checks documents, labeling, condition and count on each lot, and its computer system selects some lots for physical examination and laboratory testing.
4. What it means for the label
Since January 1, 2026, ground beef containing any imported trim cannot carry an unqualified “Product of USA” or “Made in the USA” claim, or a standalone U.S. flag (9 CFR 412.3). It may still carry a claim that names the U.S. steps, such as grinding and packaging. Because mandatory country-of-origin labeling for beef was repealed in 2015, it may also say nothing about origin at all. The result is that a package without an origin claim tells the shopper nothing either way. See What “American” Means on a Ground Beef Label for a label-by-label guide.
5. What this means for FAT’s 16 categories and the FAT App
Imported lean trim touches three of FAT’s 16 categories: Country of Origin (4), Processor (7) and Supply-Chain Intermediaries (16), which covers traders and further processors between the foreign plant and the grinder. The FAT App reads a ground beef label for each category and reports where the label is silent — which, for origin on a blended product, is now the usual answer. Which U.S. companies actually receive imported beef is documented, by name, in Purchased Silence.
6. What to watch
- How much of the 300,000-ton increase is used before it closes on November 30, 2026 (CBP quota status), and whether USDA reports that the 25% price test is being met.
- USDA’s review of country-of-origin labeling authority under Executive Order 14425, due within 90 days of September 4, 2026, and the MCOOL language in the Senate farm bill.
- Whether cow numbers recover: USDA’s July 2026 Cattle report showed total inventory up slightly from a year earlier.
Sources
- Derrell Peel, Oklahoma State University Extension, “The Hamburger Story” (Apr. 27, 2026) — extension analysis; source of the blend ratio, slaughter declines and import-share estimates.
- Proclamation 11010, “Ensuring Affordable Beef for the American Consumer” (Feb. 6, 2026)
- Proclamation 11059, “Further Ensuring Affordable Beef for the American Consumer” (Aug. 26, 2026; 91 FR 55989)
- USDA NASS, Cattle reports (January 30 and July 2026)
- 9 CFR 319.15, ground beef and hamburger standards (eCFR)
- 9 CFR 412.3, voluntary U.S.-origin claims (eCFR)
- USDA FSIS, import procedures for meat, poultry and egg products
- U.S. Customs and Border Protection, quota bulletins and status
- Executive Order 14425, “Supporting America’s Ranchers” (Sept. 4, 2026)
More in the Hamburger Research Series
- What “American” Means on a Ground Beef Label
- Lean Beef in America
- Harvest Age, Grind Specification, and Named-Primal Grinds
- Purchased Silence
- Is My Ground Beef Lab-Grown?
- Hamburger Label Decoder — work through your own package
Working paper. Revised October 20, 2026 from the December 2025 “Product of USA Series, Paper No. 8.” Corrections welcome: dirkadams@farmanimaltransparency.com.